Final answer:
Ariana can use the "View in New Window" feature in her spreadsheet program to open one workbook in a new window, allowing her to view two workbooks simultaneously.
Step-by-step explanation:
If Ariana wants to view data from two workbooks at the same time and have one of them open in a new window, she will need to use a feature in her spreadsheet application that allows this functionality. Most modern spreadsheet programs like Microsoft Excel have this option. In Excel, for instance, she can click on View in New Window to open the current workbook in a separate window. This will enable her to see both workbooks side by side or on different monitors if she has a dual-monitor setup.
To use this feature, Ariana should first open the workbook she wants in a new window. Then, she can go to the View tab on the Excel ribbon. From there, she should find and click on the View in New Window option. A new instance of the workbook will open, which she can position as needed on her screen or drag to another display.